Why Is My Outlet Buzzing? 5 Reasons Why and How to Fix Them

1. Loose or Aging Wire Connections

The most common cause of buzzing outlets is loose or aging wire connections. When wires aren’t installed properly or degrade over time, electrical current can’t flow easily or cleanly, resulting in a buzzing sound. Bad wires can cause electrical fires due to something called arcing, which is when electricity jumps between two loose connections. Whether it’s a light switch outlet or a regular outlet, you shouldn’t be checking it yourself. 

How to Fix It 

• Call a pro. This isn’t a DIY project unless you have professional electrical experience. 

• They will turn off the power and replace the faulty wiring. 

• If the wires are simply loose, they will tighten them and make sure they’re functioning correctly.  

2. Problems From the Circuit Breaker

Another common cause of buzzing is circuit breaker issues. If the breaker isn’t distributing power appropriately it can cause buzzing. This can also happen if the breaker is tripped (automatic shut off), faulty, or not properly installed. Like the fix above, you should rely on a pro to diagnose and fix the problem.

How to Fix It 

• Call a local electrical pro and discuss the problem. 

• You can DIY the breaker if the circuit was tripped by switching the tripped breaker into the “on” position. 

• The pro may need to replace the circuit breaker if they cannot find the issue. 

3. Electrical Interference 

Pay attention to the buzzing. Does it only happen when your garage door is opening? What about when your washing machine is running, or when you’re charging your laptop? Any number of devices could disrupt your home’s electrical flow. There may be a simple answer, but if you can’t connect the dots, you may need an electrical inspection. 

How to Fix It 

• Pay attention and see if the buzzing happens when certain devices are on or charging. 

• Consider adding a surge protector or moving the object to a different outlet. 

• An electrical pro may need to adjust some wires or breakers. 

4. Bad Ground Cable

Grounding issues are common in electrical systems. Sometimes the grounding wire becomes faulty. Other times it wasn’t properly installed. Like many other issues that can cause outlet buzzing, a bad ground is a cause for concern as it is another possible cause of electrical fire or electrical shock. 

How to Fix It 

A pro will test the cable. If it’s damaged, they will replace it. It may be that it’s just improperly connected but ground cables aren’t expensive, so in many cases, it makes sense to just replace it.

5. Unwanted Guests 

Believe it or not, pests such as bugs, mice, and rats can all clog up an otherwise working outlet. These pests can chew on wires, breaking the clean connection and causing buzzing. Their nests can also build up near wires, creating the perfect tinder for a fire to start if they chew through a wire near the nest. These issues are common in all types of homes, so don’t assume that because you live in a new build, you’ll never have to seal your house from mice. 

How to Fix It 

• Check your house for entrance points. Remember that a hole as small as a dime is enough for a small mouse to fit through. 

• Plug any openings you find by covering them with wood slats or replacing the siding where they have entered. 

• You may need to lay traps or bait inside the home. Be very careful with any poison. In fact, we recommend avoiding that option entirely as mice could die near pets that eat them, injuring or killing that pet.  

When to Call a Pro

For this fix, you should call a pro—period. Any electrical work in a home is not a DIY project due to safety concerns, so we recommend calling someone if you even suspect a problem. Fire risk and electrical shock are both situations you want to avoid.